AutoMeter 5284 LS Gauge Adapters
You need these adapters if you plan on running aftermarket gauges on an LS engine like water temp and oil pressure. The kit allows you to adapt normal, electric gauge sending units with NPT fittings into the factory metric holes.Also comes with an electrical resistor to allow the use of a normal tachometer from the stock factory EFI wiring harness.
- GM LS Engines
- Includes 340° cylinder head temperature sender
NOTE: If you would rather use a mechanical water temp gauge, you will need to remove one cylinder head and drill out the metric hole to the standard NPT size for the water temp adapter. You can also drill and tap that small outlet on the oil pan for a standard oil pressure gauge or use the Auto Meter metric adapter in place of the stock oil pressure sending unit.